CN1914959A - Lighting control device having improved long fade off - Google Patents
Lighting control device having improved long fade off Download PDFInfo
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- CN1914959A CN1914959A CNA2004800414425A CN200480041442A CN1914959A CN 1914959 A CN1914959 A CN 1914959A CN A2004800414425 A CNA2004800414425 A CN A2004800414425A CN 200480041442 A CN200480041442 A CN 200480041442A CN 1914959 A CN1914959 A CN 1914959A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
- H05B39/04—Controlling
- H05B39/08—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices
- H05B39/083—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices by the variation-rate of light intensity
- H05B39/085—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices by the variation-rate of light intensity by touch control
- H05B39/086—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices by the variation-rate of light intensity by touch control with possibility of remote control
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
- H05B39/04—Controlling
- H05B39/08—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices
- H05B39/083—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices by the variation-rate of light intensity
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/185—Controlling the light source by remote control via power line carrier transmission
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S315/00—Electric lamp and discharge devices: systems
- Y10S315/04—Dimming circuit for fluorescent lamps
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- Circuit Arrangement For Electric Light Sources In General (AREA)
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
Abstract
The present invention discloses a lighting control device for controlling the light intensity level of at least one lamp. The lighting control device includes a microcontroller and a user-actuatable switch controller that is operatively coupled to the microcontroller. The microcontroller causes the light intensity level of the lamp to fade at a first fade rate when the switch controller is actuated. If the microcontroller determines that the switch controller has been actuated for at least a predefined actuator hold time, the microcontroller causes the light intensity level of the lamp to fade at a second fade rate for a predefined long fade time. After the long fade time elapses, the microcontroller causes the light intensity level of the lamp to fade to off at a third fade. The first fade rate is based on a predefined fade-off time that represents a time allotted for fading the ligth intensity level of the lamp from its initial light intensity level to off. To prevent the light intensity level from fading to off before the actuation time elapses, the fade off time may be defined to be longer than the actuation time. The second fade rate may be slower than the first fade rate and have an exponential fade profile. The third fade rate may be a predefined rate at which the microcontroller is programmed to cause the light intensity level to fade from full on to full off. The third fade rate may be quicker than the second fade rate.
Description
The application requires on January 7th, 2004 application, name is called the U.S. Patent application no.10/753 of " Lighting ControlDevice Having Improved Long Fade Off (having the illumination control apparatus that the long fade of improvement is closed) ", 035 priority, its content is incorporated in this as a reference.
Technical field
Present invention relates in general to illumination control apparatus.More specifically, the present invention relates to use a series of gradual change speed so that the illumination control apparatus of the light intensity level gradual change of one or more lamp.
Background technology
Dimmer switch promptly, comprises the wall-mounted optical switch of dimmer, especially controls the application of light intensity level exactly for expectation in particular room, and it is more and more welcome to have become.Some known dimmer switches use the switch of controlling TRIAC (triac) by manually operated variable resistance, and this TRIAC changes the voltage of the lamp that is input to modulated light again.There are many known limitations in this manually operated variable resistance dimmer switch.Exist some contact start controllers handle these the limitation at least some.
A kind of such contact start controller in response to the contact input of continuity with a strength range from secretly to bright repetitive cycling.Memory function is provided, and when removing the contact input with box lunch, this circulation will stop, and the light intensity level at this some place in the circulation will be deposited in the memory.Short-time contact input subsequently will be closed lamp, and further the short-time contact input will turn on the light with the strength grade that is stored in the memory.Though such switch is the improvement with respect to manually operated variable resistor dimmer switches, it requires the user to experience the circulation of strength grade in order to reach the desired intensity grade.In addition, it still lacks the ability of getting back to the desired intensity grade after being adjusted to full light output.The user must find the light intensity level of expectation through circulating once more up to him or she.And such switch does not typically have some aesthetic effect of performance, such as from the ability of a light intensity level to another gradual change.
United States Patent (USP) no.5,248,919 (" 919 patents ") disclose a kind of lighting controller, this lighting controller can comprise and be used between minimum intensity grade and maximum intensity grade selecting the user of desired intensity grade can start the intensity choice device, and is used to respond the control switch device that produces the control signal of expression preliminary election state and strength grade from user's input.The disclosure of 919 patents is all introduced at this.
919 patents also disclose control device, and this control device is used to impel at least one lamp gradual change: a) when the input from the user impels switch closure, with the first gradual change speed, from closed condition to the gradual change of desired intensity grade; B) impel two switches rapidly during the closed short continuously duration (transitory duration) when input from the user, with the second gradual change speed, from any strength grade to the maximum intensity level gradual change; C) when the input from the user impels closed short duration of single switch, with the 3rd gradual change speed, from the desired intensity grade to the closed condition gradual change; And d) when the input from the user impels that single switch is closed to surpass short duration, with the 4th gradual change speed, from the desired intensity grade to the closed condition gradual change.When time that the intensity choice device is activated surpassed short duration, control device can impel lamp with the 5th gradual change speed, from first strength grade to the second strength grade gradual change.
Fig. 1 has described the wall type controller 10 of the prior art described in 919 patents.As shown in the figure, wall type controller 10 comprises cover plate 12, be used to select select starter 14 by the intensity of the light intensity level of the expectation of one or more lamps of device control, and control switch starter 16.The startup of the top 14a of starter 14 increases or has improved light intensity level, and the startup of the bottom 14b of starter 14 reduces or reduced light intensity level.Wall type controller 10 also can be for example comprises intensity level indicator with the form of a plurality of light sources 18, and this light source 18 for example can be a light-emitting diode (LED).One of light source 18 by illuminating selection, the light source position that illuminates in the array can provide the visible indication of the light intensity level of controlled one or more lamps.
In this, example gradual change speed shown in 919 patents and gradual change rate curve (profile) are reappeared as Fig. 2 A-2D.Fig. 2 B shows the first gradual change speed, under this first gradual change speed, lamp from closed condition to the blast of desired intensity grade.The first gradual change speed from " closing " to the desired intensity grade is labeled as reference marker 40.Fig. 2 B shows according to the gradual change speed from the figure of " closing " standardization (normalized) light intensity level reduced time to 100%, and this time is unit with the second.As shown in the figure, gradual change speed 40 can be gradient to 100% from " closing " with about 3.5 seconds, promptly with approximately+30% velocity tapering of per second.When illumination control apparatus 10 of the present invention singly kowtowing before control switch starter 16 and the controlled lamp of receiving that the user imports be close the time, use this gradual change speed.When the user selects starter 14 to select the desired intensity grade by starting intensity, also can (but be not must) use this gradual change speed.Therefore, when the top of starter 14 14a is started by the user, lamp 20 will be with gradual change speed 40 from a strength grade to another strength grade blast.
Similarly, Fig. 2 C shows gradual change speed 42, when controlled lamp has been opened and during tapping starter 16, when perhaps the bottom 14b of starter 14 is started by the user, lamp 20 will be with this gradual change speed 42 from a strength grade to another diminuendo.It is identical with gradual change speed 40 that gradual change speed 42 is illustrated, but with opposite sign, and with about 3.5 seconds from 100% to " pass ", the gradual change speed of promptly about 30% per second.Yet, should be appreciated that gradual change speed accurately is not vital, and gradual change speed 40 can be different with 42.
Fig. 2 A shows the second gradual change speed 44, when illumination control apparatus 10 receive that the user imports to continuous kowtow soon for twice of control switch starter 16 time, lamp 20 is with these second gradual change speed, 44 blasts to 100%.As mentioned above, on the starter 16 twice kowtow soon make lamp 20 from that time light intensity level to 100%, or open gradual change fully.The gradual change speed 44 comparable first gradual change speed 40 are faster, but are not near the degree of moment basically.An example of gradual change speed 44 is approximately+66% per second.If desired, gradual change speed 44 can postpone (such as 0.3 second) in the short time and begin afterwards, or can add a slower gradual change speed 46 earlier in this interval.
" maintenance " of starter 16 places inputs make lamp 20 with the 3rd gradual change speed 48 from its strength grade at that time to closing gradual change, as shown in Fig. 2 D.Any one of the comparable gradual change speed shown in previous of gradual change speed 48 all slowly many.Gradual change speed 48 can not be constant also, and can be dependent on lamp 20 at that time strength grade and change.Yet this gradual change speed can be, makes lamp 20 for all initial strength grades, will be with approximately identical time quantum from its strength grade at that time to closing gradual change.For example, if the gradual change in about ten seconds (to give user's time for example to pass through the room before light is extinguished) of expectation lamp 20 if lamp 20 strength grade at that time is 100%, then can be used the gradual change speed of about 10% per second to closing.
On the other hand, if lamp 20 strength grade at that time only is 35%, then gradual change speed can only be 3.5% per second, so that lamp 20 will just reach fully and closes when ten seconds of expectation.In addition, if desired, begin to determine diminuendo, can use slightly hurry up gradual change speed 50 in half second at the original treaty of diminuendo in order to give user's immediate feedback.The gradual change speed 50 that is fit to can be about 33% per second.Also can near the end of diminuendo, use similar gradual change speed faster 52, so that lamp 20 extinguishes to the low-intensity grade soon in gradual change.Therefore, about ten seconds with slow relatively speed diminuendo after, lamp 20 will be in about one second with all the other mode gradual changes to closing.If use fast initial and last gradual change speed, then middle gradual change speed must slow down to realize the identical gradual change time.
Yet as shown in Fig. 2 D, in the situation of lower initial intensity levels, middle gradual change speed may be zero (constant light output), and in addition the situation of lower initial intensity levels, lamp can be closed during initial quick diminuendo in diminuendo.Therefore, under low luminous intensity (for example, being lower than about 20%), control device tend to long fade close be activated before (that is, detecting single switch is closed surpass the short duration before) lamp is closed.Closing if this optical controller can start long fade from any luminous intensity, then is desirable.
Summary of the invention
The present invention relates to illumination control apparatus, when having determined that on-off controller has been activated, this illumination control apparatus makes the light intensity level of at least one lamp with the first gradual change velocity tapering based on its initial intensity.In the exemplary embodiment, but illumination control apparatus can comprise microcontroller and effectively be connected to user's starting switch controller of this microcontroller.
When on-off controller was started at first, microcontroller made the light intensity level of at least one lamp with the first gradual change velocity tapering.If this microcontroller has been determined on-off controller and has been activated predetermined at least start-up time that then this microcontroller makes the long gradual change time that the light intensity level of this at least one lamp is scheduled to the second gradual change velocity tapering.
The first gradual change speed is based on the predetermined diminuendo shut-in time, and this diminuendo shut-in time is expressed as the light intensity level that makes this at least one lamp from time that its initial strength grade gradual change distributes to zero.Gradual change was to closing before past start-up time in order to prevent light intensity level, and the diminuendo shut-in time can be defined as longer than start-up time.The comparable first gradual change speed of the second gradual change speed is slow, and can have exponential fade profile.
The long gradual change time in the past after, microcontroller make the light intensity level of this at least one lamp with the 3rd gradual change velocity tapering to closing.The 3rd gradual change speed can be that microcontroller makes light intensity level from the extremely zero predetermined speed of 100% gradual change.
Description of drawings
Among the figure, identical numeral components identical:
Fig. 1 has described the wall type controller of prior art;
Fig. 2 A-2D has described the gradual change speed and the gradual change rate curve of example in the Lighting Control Assembly of prior art;
Fig. 3 has described to embody the wall type controller 100 according to illumination control apparatus of the present invention;
Fig. 4 is the simplified block diagram that is used for according to the exemplary circuit of illumination control apparatus of the present invention;
Fig. 5 A-5D has described the scheme that will compare with the gradient ramp of the illumination control apparatus of typical prior art according to the gradient ramp of illumination control apparatus of the present invention; And
Fig. 6 is the flow chart that illustrates according to the operation of control device of the present invention.
Embodiment
Fig. 3 has described to embody the wall type controller 100 according to illumination control apparatus of the present invention.Wall type controller 100 comprises protecgulum 102, is used to select select starter 104 by the intensity of the light intensity level of the expectation of the lamp of this device control, and control switch starter 106.Protecgulum 102 is not necessarily limited to any particular form, and is preferably the type that is fit to be mounted to the conventional wall box that generally is used to install illumination control apparatus.Starter 104 and 106 is not limited to any particular form equally, and can be any suitable structure that allows the user to manually boot.
Starter 104 may command are rocker switch for example, but also may command two push-button switches that separate for example, and do not depart from the present invention.Switch by starter 104 controls can be wired directly to the control circuit that is described below, and perhaps can be connected to control circuit by electrical wiring, infrared link, radio frequency line, power line carrier circuit or other mode of extending.Equally, the switch of being controlled by starter 106 also can be wired directly to control circuit, or is connected to control circuit by electrical wiring, infrared link, radio frequency line, power line carrier circuit or other mode of extending.Starter 104 and 106 can be connected to corresponding switch with any mode easily.
Starter 106 may command are the button-type switch for example, as stirs button, but also can be touch controlled type or any type that other is fit to.The startup of the top 104a of starter 104 increases or improves light intensity level, and the startup of the bottom 104b of starter 104 reduces or reduce light intensity level.
When controlled one or more lamps were opened, by illuminating one of selected light source 108 according to light intensity level, the position of the light source that is illuminated in the array will provide the visible indication of the luminous intensity relevant with this scope.For example, show seven LED with linear array among Fig. 3.Illuminating in the array uppermost LED, will to provide light intensity level be maximum or near the indication maximum.LED will provide light intensity level greatly about the indication of the mid point of this scope in the middle of illuminating.Can use any light source 108 that makes things convenient for number, and should be appreciated that, the light source of bigger quantity will produce the better level that is complementary therewith between the interior strength grade of this scope in this array.
When controlled one or more lamps were closed, the grade that illuminates that all light sources 108 can be low was illuminated consistently, and representative is illuminated with the higher grade that illuminates at the LED of the current strength grade of open mode.This makes that array of source can be easier of the human eye perception under the environment of dark, for example, it helps the user to find the position of switch at dark room, so that starting switch is with the lamp in the control room, but still provide enough contrasts between grade indication LED and remaining LED, so that the user can discover relative strength grade at a glance.
Fig. 4 is the simplified block diagram that is used for according to the exemplary circuit of illumination control apparatus of the present invention.Schematically illustrated circuit among Fig. 4, perhaps its any part can be included in the standard rear cabinet, in rear cabinet 110.
Lamp group 120 can comprise one or more lamp, connects between the live wire end of the standard A C of 120V, 60Hz (interchange) power supply and zero line side.Lamp group 120 can comprise one or more incandescent lamps, and the rated power of each incandescent lamp for example arrives between several hectowatts at 40W.Should be appreciated that, except incandescent lamp, perhaps replace incandescent lamp, the lamp group for example can comprise other load such as electric low pressure (ELV) or magnetic low pressure (MLV).
Lamp group 120 can connect by solid switchgear 122, and this solid switchgear 122 can comprise one or more TRIAC, and it can be thyristor or similar control device.Conventional light adjusting circuit typically uses TRIAC to control by load, allow the conduction of the line current of predetermined conduction time, and controls the average electrical power of lamp.A kind of technology that is used to control average electrical power is forward phase control.In forward phase control, for example can comprise that switching device certain point in each AC line voltage half cycle of TRIAC is switched on, and keep connecting up to current over-zero (current zero crossing) next time.Forward phase control often is used to control the power that is applied on ohmic load or the inductive load, and described load for example can be the magnetic lighting transformer.
Because the TRIAC device only can optionally be connected, when to turn-off phase place be selectable, for example can be used for each half period of AC line input such as the field-effect transistor (FET) of MOSFET (metal-oxide semiconductor (MOS) FET).In reverse phase control, switch is switched on when the voltage zero-cross of AC line voltage, and certain point in each half period of AC line current is turned off.Reverse phase control often is used to control the power that imposes on capacitive load, and this capacitive load for example can be the electronic transformer that connects low-pressure lamp.
Switching device 122 has the control input that is connected to gate driver circuit 126, and perhaps the grid input 124.It will be understood to those of skill in the art that the control input in the grid input 124 will make switching device 122 conduct or insulation, it controls the power that offers lamp group 120 again.Drive circuit 126 responses provide the control input from the command signal of microcontroller 128 to switching device 122.Also can provide FET protective circuit 136.Sort circuit is well-known and need describe at this.
Microcontroller 128 for example can be any programmable logic device (PLD), as microprocessor or application-specific integrated circuit (ASIC) (ASIC).Microcontroller 128 produces command signal to LED control circuit 129, the array of these LED control circuit 129 control light sources 108.Input to microcontroller 128 receives from AC circuit zero-crossing detector 130 and signal detector 132.The power that imposes on microcontroller 128 is provided by power supply 134.Memory 135 such as EEPROM for example also can be provided.
The zero crossing that zero-crossing detector 130 is determined from the input 60Hz AC waveform of AC power supplies.Zero passage information offers microcontroller 128 as input.Microcontroller 128 is set up grid control signal with installation switching device 122, thereby provides voltage from AC power supplies to lamp group 120 in the scheduled time with respect to the zero crossing of AC waveform.Zero-crossing detector 130 can be conventional zero-crossing detector, and need not to describe in further detail at this.In addition, also be known with respect to the timing of the conversion initial pulse of the zero crossing of AC waveform, and need not to further describe.
Signal detector 132 receives the switch closure signals as the toggle switch of next free switching starter 106 controls of importing, and selects the top 104a of starter 104 and the rising switch and the reduction switch of bottom 104b control by intensity respectively.
When signal detector 132 detects switch closure, and the signal of output representation switch state is as the input to microcontroller 128.Signal detector 132 can be any type of custom circuit, is used for the sense switch closure and is converted into suitable form as the input to microcontroller.Those skilled in the art understand how to construct signal detector 132, and need not in this further explanation.Microcontroller 128 is in response to determine the closed duration from the input of signal detector 132.
Such as depressing starter 104a by the user with the rising switch closure, begin " rising light grade " routine of the pre-programmed in the microcontroller 128, and make microcontroller 128 by gate driver circuit 126 reduce switching devices 122 by (that is non-the conduction) time.The minimizing of deadline has increased the time quantum that switching device 122 is in conduction, this means that the more vast scale from the AC voltage of AC input is transferred to lamp 120.Therefore, the light intensity level of lamp 120 can be enhanced.As long as the rising switch remains closed, then reduce deadline.For example unclamp starter 104a with one disconnection of rising switch by the user, the routine in the microcontroller just stops, and keeps deadline constant.
In a similar manner, to reduce switch closure such as depress starter 104b by the user, begin " reducing the light grade " routine of the pre-programmed in the microcontroller 128, and make microcontroller 128 increase the deadline of switching device 122 by gate driver circuit 126.The increase of deadline has reduced the time quantum that switching device 122 is in conduction, this means that the smaller scale from the AC voltage of AC input is transferred to lamp 120.Therefore, the light intensity level of lamp 120 can be lowered.Remain closed as long as reduce switch, then increase deadline.For example unclamp starter 104b by the user and will reduce switch one disconnection, the routine in the microcontroller 128 just stops, and keeps deadline constant.
The startup of starting switch response starter 106 is closed, and as long as starter 106 is depressed and will remains closed.Signal detector 132 provides signal to microcontroller 128, and the indication starting switch is closed.Microcontroller 128 is determined the time span that starting switch is closed.Microcontroller 128 can be distinguished starting switch, and only closure and the starting switch of short duration (that is, being shorter than the starter retention time that describes below) surpass the weak point closure of duration (the starter retention time of promptly being longer than or equaling to describe below).Therefore, microcontroller 128 can be distinguished " maintenance " (closure that promptly surpasses the short duration) of starter 106 " tapping " (that is, lacking the closure of duration) and starter 106.
Microcontroller 128 can also determine when that starting switch by continuous short time closure repeatedly.That is to say that microcontroller 128 can be determined two or more generations of tapping continuously rapidly.
When starting switch is activated, the different closures of starting switch will cause relying on the different-effect of the state of lamp 20.When lamp 120 during in initial, non-zero intensities grade, singly the kowtowing of starter 106, promptly the short time closure of starting switch will cause gradual change to closing.The operation of the controller under these situations is discussed in more detail below.Rapidly twice tappings will begin routine in the microcontroller 128 continuously, this routine make lamp 120 with the gradual change speed of pre-programmed from the initial strength grade to the expectation strength grade gradual change of presetting.Operating in 919 patents of controller under these situations is described in detail." maintenance " of starter 106, promptly starting switch surpasses the closure of short duration, the routine of beginning microcontroller 128, this routine with in predetermined gradual change velocity series is little by little during continuity from initial strength grade gradual change to closing.The operation of the controller under these situations is discussed in more detail below.
When lamp 120 for closing and controller 128 detects and singly kowtows or closed when surpassing short duration, the routine of pre-programmed begins in microcontroller 128, make the light intensity level of lamp 120 with the gradual change speed of pre-programmed from closing to the expectation strength grade gradual change of presetting.Rapidly twice continuous tappings will begin the routine in the controller 128, make the light intensity level of lamp 120 at a predetermined velocity from closing to the standard-sized sheet gradual change.Gradual change speed can be identical, perhaps can be inequality.Operating in 919 patents of controller under each of these situations is described in detail.
In addition, another group is stirred button, rising button and is reduced button and can be arranged on remote position in the wall box separately, as schematically illustrated by a dotted line among Fig. 4.Stir button, rising button at a distance and reduce button, and the effect of related toggle switch, rising switch and reduction switch is corresponding to the effect of start button 106, rising button 104a, reduction button 104b and respective switch thereof.Remote circuitry 133 can be provided to get in touch remote wall type controller.
To the light modulation exemplary scenario of utilization according to illumination control apparatus of the present invention be described in conjunction with Fig. 5 A-5D now.Fig. 5 A-5D has described the scheme that will compare with the gradient ramp (shown in broken lines) of the illumination control apparatus of typical prior art according to the gradient ramp (illustrating with solid line) of illumination control apparatus of the present invention.The particular term that is used to describe below is following in this qualification.
" retention time " or " button retention time " or " starter retention time " be starter (for example, stir button) (for example must be activated, push) so that produce the time quantum (that is, be used for microcontroller and discern " maintenance " as mentioned above) of " maintenance " effect.In the exemplary embodiment of the present invention, the default value of starter retention time can be about 0.5 second.Can be chosen for any value that is suitable for application-specific though should be appreciated that the starter retention time, in order to use to greatest extent, the starter retention time will be that this expects between about 0.01 to about 2.56 seconds.
" diminuendo shut-in time " is to be used for controller to make the scheduled time of throwing light on from its current light intensity grade gradual change distributes to closing measure.The diminuendo shut-in time is used for calculating the gradual change speed that is adopted in the past up to the retention time from the time that starter is activated at first.According to the present invention, the diminuendo shut-in time is defined as is longer than the retention time, throws light on gradual change to close in the retention time in the past so that controller does not make.In exemplary embodiment of the present invention, the default value of diminuendo shut-in time can be about 2.25 seconds.Can be chosen for any value that is suitable for application-specific though should be appreciated that the diminuendo shut-in time, in order to use to greatest extent, the diminuendo shut-in time will be about 0 and about 64 seconds between, this expects.
" long gradual change time " is after past retention time, is used for controller and makes the time quantum of illumination according to the second gradient ramp gradual change, and this second gradient ramp is preferably slower, for example exponential fade profile.In exemplary embodiment of the present invention, the default value that is used for the long gradual change time is 10 seconds.Can be chosen for any value that is suitable for application-specific though should be appreciated that the long gradual change time, in order to use to greatest extent, the long gradual change time will be that this expects between about 0 second to about 4 hours.
" fade off rate " is that controller makes the illumination gradual change to the predetermined speed of cutting out.After the long gradual change time expires, adopt fade off rate.In exemplary embodiment of the present invention, the default value that is used for fade off rate can be make illumination in about 2.75 seconds from 100% intensity gradual change to closing required speed.Can be chosen for any value that is suitable for application-specific though should be appreciated that fade off rate, in order to use to greatest extent, being used for from standard-sized sheet can be time between about 0 to about 64 seconds to the time that the complete shut-down gradual change is distributed, and this expects.
" LED flashing speed " is the speed of intensity level indicator 108 in long gradual change time durations flash of light.In the exemplary embodiment of the present invention, the default value that is used for the LED flashing speed can be 2Hz.Can be chosen for any value that is suitable for application-specific though should be appreciated that flashing speed, in order to use to greatest extent, this speed can be about 0.2 with approximately between the 50Hz, and this expects.
Utilization can followingly be made general description according to the exemplary light modulation scheme of illumination control apparatus of the present invention.When the light intensity level of at least one lamp was non-zero, the user pushed and stirs button 106.Microcontroller detects the switch closure that takes place, and make light intensity level with based on the first gradual change speed of diminuendo shut-in time and gradual change, this gradual change to the time of closing promptly be used for controller make illumination from its current light intensity level gradual change to the scheduled time amount of closing.
If the user continues to push and stirs button 106 and go over up to the button retention time, microcontroller interrupts the gradual change of the first gradual change speed, and makes light intensity level gradual change with the second gradual change speed (for example index gradual change speed).At the moment, the long gradual change time, and intensity level indicator 108 begins flash of light.
After the long gradual change time expires, microcontroller interrupts the gradual change of the second gradual change speed, and begin to make that light intensity level gradual change with the 3rd gradual change speed (being fade off rate), this speed are that controller is programmed so that the extremely zero predetermined speed of light intensity level gradual change.Intensity level indicator stops flash of light.
Fig. 5 A has described a scheme, light intensity level high relatively at first (for example, 100%) wherein, and the user pushes and keep stirring button button retention time at least.From stirring the time that button is pushed at first, to go over up to the button retention time, controller makes light intensity level with based on the first gradual change speed of diminuendo shut-in time (and, thus, based on the initial light strength grade of at least one lamp) and gradual change.Especially, the first gradual change speed can be make illumination in the process of diminuendo shut-in time from the gradual change of initial strength grade to closing required speed.
The abrupt slope of diminuendo shut-in time allows the user visually to see the change of luminous intensity.Under high strength, the more significant change of luminous intensity may be desirable, thereby user's eyes can perceive variation.The user sees the result who stirs button press immediately.
After past button retention time, controller interrupts the gradual change of the first gradual change speed, makes light intensity level grow the gradual change time durations with the second gradual change velocity tapering then.In exemplary embodiment of the present invention, the second gradual change speed can be than the slow-footed index gradual change of first gradual change speed.Therefore, the user can realize the beginning of long gradual change time, causes light intensity level to change significantly not as good as the gradual change based on the first gradual change speed immediately because become the index gradual change.
The long gradual change time in the past after, controller interrupts the gradual change of the second gradual change speed, and make light intensity level with the 3rd gradual change speed (for example fade off rate) gradual change to closing.
By contrast, prior art system make light intensity level with fade off rate from time of stirring button and being pressed at first up to the gradual change that expires of button retention time.Because the first gradual change speed based on the diminuendo shut-in time in this programme is bigger than the gradual change speed that adopts in the prior art systems, in system of the present invention, the long gradual change time is with the light on than light intensity level low in the prior art systems.
Fig. 5 B has described a kind of scheme, and wherein light intensity level low relatively at first (for example, 25%), and user is pushed and kept stirring button button retention time at least.From stirring the time that button is pushed at first, to go over up to the button retention time, controller makes light intensity level with based on the first gradual change speed of diminuendo shut-in time and gradual change.Especially, the first gradual change speed can be make illumination in the process of diminuendo shut-in time from the initial grade gradual change to the speed of closing.The shallow slope of diminuendo shut-in time prevents that luminous intensity from significantly reducing or even close before the long gradual change time starts.
After past button retention time, controller interrupts the gradual change of the first gradual change speed, makes light intensity level grow the gradual change time durations with the second gradual change velocity tapering then.In exemplary embodiment of the present invention, the second gradual change speed can be than the slow-footed index gradual change of first gradual change speed.Should be appreciated that any gradient ramp all can be chosen for the second gradual change speed and do not depart from this
Scope of invention.
The long gradual change time in the past after, controller interrupts the gradual change of the second gradual change speed, and make light intensity level with the 3rd gradual change speed (for example fade off rate) gradual change to closing.Should be appreciated that any gradual change speed can be chosen for the 3rd gradual change speed and do not depart from scope of the present invention.
By contrast, prior art system make light intensity level with fade off rate from time of stirring button and being pressed at first up to the gradual change that expires of button retention time.Because the first gradual change speed based on the diminuendo shut-in time in this programme is slower than the gradual change speed that adopts in the prior art systems, thereby in system of the present invention, the long gradual change time is with the light on than light intensity level high in the prior art systems.
Fig. 5 C has described a scheme, light intensity level high relatively at first (for example, 100%) wherein, and the user pushes and unclamped in the past in the button retention time and to stir button.From stirring the time that button is pushed at first, up to stirring the released time of button, controller makes light intensity level with based on the first gradual change speed of diminuendo shut-in time and gradual change.Especially, the first gradual change speed can be illumination can be in the process of diminuendo shut-in time from the gradual change of initial strength grade to the speed of closing.After button was released, controller interrupted the gradual change of the first gradual change speed, and made light intensity level with the second gradual change speed (being fade off rate) gradual change.
By contrast, prior art system makes the time gradual change that light intensity level is pressed from stirring button at first with fade off rate.
Fig. 5 D has described a kind of scheme, light intensity level low relatively at first (for example, 25%) wherein, and the user pushes and unclamped in the past in the button retention time and to stir button.From stirring the time that button is pushed at first, up to the released time of button, controller makes light intensity level with the first gradual change velocity tapering based on the diminuendo shut-in time.Especially, the first gradual change speed can be make illumination in the process of diminuendo shut-in time from the initial grade gradual change to the speed of closing.Stir button released after, controller interrupts the gradual change of the first gradual change speed, and makes light intensity level with the second gradual change speed (being fade off rate) gradual change.
By contrast, prior art system makes the time gradual change that light intensity level is pressed from stirring button at first with fade off rate.Should be appreciated that in this prior art systems, if the initial strength grade is enough low, gradual change was to closing before illumination will be gone in the button retention time.In system according to the present invention, the diminuendo shut-in time (and, therefore, the first gradual change speed) is optional obtain make light intensity level at least up to the button retention time in the past just gradual change to closing.
Fig. 6 shows the flow chart according to the operation 600 of control device of the present invention.This operational example is as implementing by the software program of carrying out on microcontroller.This program also can be used as and is stored in the set of computer-executable instructions on any computer-readable medium and has this computer-readable medium such as hard disc of computer, removable magnetizing mediums, tape, compact disk, floppy disk or the like.Operation 600 has been pushed step 602 beginning of stirring button from determining when the light intensity level non-zero (, when light is disconnected).
Whether step 604 determines the diminuendo shut-in time " in scope ", i.e. whether the diminuendo shut-in time is longer than the button retention time and is shorter than (or equaling) predetermined maximum diminuendo shut-in time.If determined the diminuendo shut-in time not in scope, so, in step 606, controller make illumination with the fade off rate gradual change to closing, and program withdraws from step 608.
If, in step 604, determined the diminuendo shut-in time in scope, so,, calculate initial light modulation increment, Δ D based on the diminuendo shut-in time in step 610
iBy predetermined diminuendo shut-in time T
FIntensity update cycle T divided by pre-programmed
U, having provided will be from initial strength grade D
iThe quantity that the intensity that gradual change to the down periods occur is upgraded.Therefore, light modulation increment Delta D
iCan be calculated as Δ D
i=(T
U* D
i)/T
FIntensity update cycle T
UExample can be about 10ms.
In step 612, current intensity level D is by light modulation increment Delta D
iUpgrade.That is to say D-＞D-Δ D
iIn step 614, current intensity level D is transformed to corresponding switching device t change-over time.In step 616, grid control signal is set in t conversion change-over time.In step 618, microcontroller sends grid control signal to gate driver circuit, and gate driver circuit makes switching device maybe can not conduct again.
Step 620, program cycle is up to definite intensity update cycle T
UOver and done with.In step 622, intensity update cycle timer is restarted.In step 624, whether the confirming button retention time is over and done with.If do not pass by as yet, then program is returned step 612 and is made current intensity level upgrade once more still to adopt the first gradual change speed.
If in step 624, the confirming button retention time is over and done with,, determine whether the long gradual change time is over and done with then in step 626.If do not pass by as yet,, be used for the light modulation increment Delta D that long fade is closed then in step 628
1According to Δ D
1=(D-1)/N calculates, wherein N be set at produce slow gradual change speed predetermined scalar (for example, N=1024).Can deduct numerical value " 1 " even to guarantee that current intensity level D is 1%, illumination still stays open.
In step 630, current intensity level D is by light modulation increment Delta D
1Upgrade.That is to say D-＞D-Δ D
1In step 632, current intensity level D is transformed to corresponding switching device t change-over time.In step 634, grid control signal is set in t conversion change-over time.In step 618, microcontroller sends grid control signal to gate driver circuit.In step 620, program cycle is up to having determined intensity update cycle T
UOver and done with.
If, in step 626, determined that the long gradual change time is over and done with, then in step 636, illumination with the fade off rate gradual change of pre-programmed to closing.Program withdraws from step 638.
Like this, described improved illumination control apparatus, it makes the gradual change speed of light intensity level its initial strength when being activated based on on-off controller of at least one lamp and gradual change.Should be appreciated that the present invention can be presented as other particular form and do not depart from its spirit or substantive characteristics, and therefore, should be when indication scope of the present invention with reference to appended claim, rather than aforesaid specification.
Claims (23)
1. illumination control apparatus, it is used to control the light intensity level of at least one lamp, and this at least one light fixture has the initial light strength grade, and this illumination control apparatus comprises:
Microcontroller; And
But effectively be connected to user's starting switch controller of described microcontroller,
Wherein, when described on-off controller is activated, described microcontroller makes the light intensity level of described at least one lamp with the first gradual change velocity tapering, the described first gradual change speed is based on the predetermined diminuendo shut-in time, the described diminuendo shut-in time is expressed as light intensity level with described at least one lamp from the duration that the gradual change of initial strength grade distributes to closing, and
Wherein determining that described on-off controller has been activated predetermined at least starter during the retention time, described microcontroller makes the light intensity level of described at least one lamp with the second gradual change velocity tapering.
2. illumination control apparatus as claimed in claim 1, the wherein said diminuendo shut-in time is defined as longer than the described starter retention time.
3. illumination control apparatus as claimed in claim 1, wherein said microcontroller make the long gradual change time that the light intensity level of described at least one lamp is scheduled to the second gradual change velocity tapering.
4. illumination control apparatus as claimed in claim 3, wherein described long gradual change time in the past after, described microcontroller make the light intensity level of described at least one lamp with the 3rd gradual change velocity tapering to closing.
5. illumination control apparatus as claimed in claim 1, wherein the second gradual change speed ratio, the first gradual change speed is slow.
6. illumination control apparatus as claimed in claim 1, wherein the second gradual change speed has exponential fade profile.
7. illumination control apparatus as claimed in claim 4, wherein the 3rd gradual change speed is that microcontroller is programmed so that light intensity level was measured from 100% gradual change to zero predetermined speed through the scheduled time.
8. illumination control apparatus as claimed in claim 1, wherein, when having determined that described on-off controller only has been activated short duration, described microcontroller make the light intensity level of described at least one lamp with the 3rd gradual change velocity tapering to closing.
9. illumination control apparatus, it is used to control the light intensity level of at least one lamp, and this at least one light fixture has the initial light strength grade, and this illumination control apparatus comprises:
Microcontroller; And
But effectively be connected to user's starting switch controller of described microcontroller,
Wherein, when described on-off controller is activated, described microcontroller makes the light intensity level of described at least one lamp with the first gradual change velocity tapering, and determining that described on-off controller has been activated predetermined at least starter during the retention time, described microcontroller makes the light intensity level of described at least one lamp with the second gradual change velocity tapering
Wherein the first gradual change speed is based on the predetermined diminuendo shut-in time longer than the predetermined starter retention time.
10. illumination control apparatus, it is used to control the light intensity level of at least one lamp, and this at least one light fixture has the initial light strength grade, and this illumination control apparatus comprises:
Microcontroller; And
But effectively be connected to user's starting switch controller of described microcontroller,
Wherein, when having determined that described on-off controller has been activated, described microcontroller makes the light intensity level of described at least one lamp with the gradual change velocity tapering based on the initial strength grade of described at least one lamp.
11. a method that is used to control the light intensity level of at least one lamp, this at least one light fixture has the initial light strength grade, and this method comprises:
Determine that switching starter is activated; And
Make the light intensity level of described at least one lamp with the first gradual change velocity tapering based on the initial strength grade of described at least one lamp.
12. as the method for claim 11, wherein the first gradual change speed is based on the predetermined diminuendo shut-in time, the described diminuendo shut-in time was expressed as the light intensity level of described at least one lamp from duration that the gradual change of initial strength grade distributes to closing.
13. the method as claim 11 also comprises:
Determining that described on-off controller has been activated at least predetermined starter during the retention time, making the light intensity level of described at least one lamp with the second gradual change velocity tapering.
14. as the method for claim 13, wherein the first gradual change speed is based on predetermined diminuendo shut-in time longer than the predetermined starter retention time.
15. the method as claim 13 also comprises:
Make the light intensity level of described at least one lamp with the predetermined long gradual change time of the second gradual change velocity tapering.
16. the method as claim 15 also comprises:
Described long gradual change time in the past after, make the light intensity level of described at least one lamp with the 3rd gradual change velocity tapering to closing.
17. as the method for claim 13, wherein the second gradual change speed ratio, the first gradual change speed is slow.
18. as the method for claim 13, wherein the second gradual change speed has exponential fade profile.
19. as the method for claim 16, wherein the 3rd gradual change speed is to be used to make light intensity level to measure from 100% gradual change to zero predetermined speed through the scheduled time.
20. the method as claim 13 also comprises:
When having determined that described on-off controller only has been activated short duration, make the light intensity level of described at least one lamp with the 3rd gradual change velocity tapering to closing.
21. as the method for claim 20, wherein the 3rd gradual change speed ratio second gradual change speed is fast.
22. a computer-readable medium stores computer executable instructions on this medium, is used to carry out the method for the light intensity level that is used to control at least one lamp, this at least one light fixture has the initial strength grade, and this method comprises:
Determine that switching starter is activated; And
Make the light intensity level of described at least one lamp with the first gradual change velocity tapering based on the initial strength grade of described at least one lamp.
23. an illumination control apparatus, it is used to control the light intensity level of at least one lamp, and this at least one light fixture has the initial light strength grade, and this illumination control apparatus comprises:
Microcontroller; And
But effectively be connected to user's starting switch controller of described microcontroller,
Wherein, when having determined that described on-off controller has been activated, described microcontroller makes the light intensity level of described at least one lamp with the first gradual change velocity tapering based on the initial light strength grade of described at least one lamp, and
Wherein, when having determined that described on-off controller has been activated only single short duration, described microcontroller make the light intensity level of described at least one lamp with the second gradual change velocity tapering to closing, and
Wherein, when having determined that described on-off controller has been activated two continuous short duration, described microcontroller make the light intensity level of described at least one lamp with the 3rd gradual change speed from the gradual change of initial strength grade to the expectation strength grade that presets, and
Wherein, determining that described on-off controller has been activated when surpassing short duration, described microcontroller make the light intensity level of described at least one lamp with predetermined gradual change velocity series gradual change to closing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/753,035 US7071634B2 (en) | 2004-01-07 | 2004-01-07 | Lighting control device having improved long fade off |
| US10/753,035 | 2004-01-07 | ||
| PCT/US2004/043907 WO2005069699A1 (en) | 2004-01-07 | 2004-12-30 | Lighting control device having improved long fade off |
Publications (2)
| Publication Number | Publication Date |
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| CN1914959A true CN1914959A (en) | 2007-02-14 |
| CN1914959B CN1914959B (en) | 2012-05-30 |
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|---|---|---|---|
| CN2004800414425A Active CN1914959B (en) | 2004-01-07 | 2004-12-30 | Lighting control device having improved long fade off |
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|---|---|
| US (3) | US7071634B2 (en) |
| EP (2) | EP1921901A1 (en) |
| JP (1) | JP2007518243A (en) |
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| DE (1) | DE602004012321T2 (en) |
| ES (1) | ES2303135T3 (en) |
| WO (1) | WO2005069699A1 (en) |
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| US5621283A (en) * | 1994-08-05 | 1997-04-15 | Leviton Manufacturing Co | Microprocessor based touch dimmer system to control the brightness of one or more electric lamps using single or multi-key devices |
| JP3376737B2 (en) | 1994-12-28 | 2003-02-10 | 松下電工株式会社 | Lighting equipment |
| US5909087A (en) * | 1996-03-13 | 1999-06-01 | Lutron Electronics Co. Inc. | Lighting control with wireless remote control and programmability |
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| US7071634B2 (en) * | 2004-01-07 | 2006-07-04 | Lutron Electronics Co., Inc. | Lighting control device having improved long fade off |
| US7190125B2 (en) * | 2004-07-15 | 2007-03-13 | Lutron Electronics Co., Inc. | Programmable wallbox dimmer |
-
2004
- 2004-01-07 US US10/753,035 patent/US7071634B2/en not_active Expired - Lifetime
- 2004-12-30 CN CN2004800414425A patent/CN1914959B/en active Active
- 2004-12-30 CA CA002552808A patent/CA2552808A1/en not_active Abandoned
- 2004-12-30 JP JP2006549325A patent/JP2007518243A/en active Pending
- 2004-12-30 DE DE602004012321T patent/DE602004012321T2/en active Active
- 2004-12-30 ES ES04815897T patent/ES2303135T3/en active Active
- 2004-12-30 EP EP08152151A patent/EP1921901A1/en not_active Withdrawn
- 2004-12-30 EP EP04815897A patent/EP1702500B1/en active Active
- 2004-12-30 WO PCT/US2004/043907 patent/WO2005069699A1/en active Application Filing
- 2004-12-30 AT AT04815897T patent/ATE388608T1/en not_active IP Right Cessation
-
2005
- 2005-12-28 US US11/320,027 patent/US7166970B2/en not_active Expired - Lifetime
-
2006
- 2006-08-23 US US11/508,667 patent/US7382100B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707830A (en) * | 2009-10-29 | 2010-05-12 | 海洋王照明科技股份有限公司 | Method and system for controlling light emission and light emitting device |
Also Published As
| Publication number | Publication date |
|---|---|
| US7382100B2 (en) | 2008-06-03 |
| US7166970B2 (en) | 2007-01-23 |
| ES2303135T3 (en) | 2008-08-01 |
| DE602004012321D1 (en) | 2008-04-17 |
| ATE388608T1 (en) | 2008-03-15 |
| CA2552808A1 (en) | 2005-07-28 |
| DE602004012321T2 (en) | 2009-03-26 |
| US20060279236A1 (en) | 2006-12-14 |
| EP1702500A1 (en) | 2006-09-20 |
| EP1702500B1 (en) | 2008-03-05 |
| WO2005069699A1 (en) | 2005-07-28 |
| CN1914959B (en) | 2012-05-30 |
| US20050146288A1 (en) | 2005-07-07 |
| JP2007518243A (en) | 2007-07-05 |
| EP1921901A1 (en) | 2008-05-14 |
| US7071634B2 (en) | 2006-07-04 |
| US20060103331A1 (en) | 2006-05-18 |
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